Exhaust-muffler.



A. G. SNYDER.

EXHAUST MUFFLER.

APPLICATION rum) 00113, 1911.

1,024,703, Patented Ap I 30, 1912.

COLUMBIA PLANOGRAPH cO-. WAsmNdTON. D. c.

AUGUSTUS Gr. SNYDER, 0F UTICA, NEW YORK.

EXHAUST-MUFFLER.

Specification of Letters Patent.

Application filed October 13, 1911.

Patented Apr. 30, 1912.

Serial No. 654,504.

To all whom "it may concern:

Be it known that I, AUGUSTUS G. SNYDER, a citizen of the United States,residing at Utica, in the county of Oneida and State of New York, haveinvented or discovered certain new and useful Improvements inExhaust-Mufflers, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to an improved muffler for the exhaust ofinternal combustion engines, and has for its object to provide a mufflerwhich will be efficient in operation, and which may be manufactured atcomparatively little expense.

To this end the improved muffler preferably consists of a pan-shaped ordiscoidal hollow body within the chamber of which are numeroustransverse pins on all or on a portion of which are placed looselycoiled springs, the said pan-shaped or discoidal body being providedwith inlet and outlet ports for the passage of the products ofcombustion.

In the accompanying drawing Figure 1 is a broken-out view of theimproved muffler, and Fig. 2 is a lon itudinal transverse section of thesame on line 22, Fig. 1.

Referring to the drawing, the body portion 12 of the muffler willpreferably consist of a hollow metal part somewhat in the form of a flator shallow pan, and having short or oppositely arranged inlet and outletpipes or parts 13. Between the opposing circular walls forming thechamber of the muffler are numerous transverse pins 14 a portion or allof which are encircled by loose coils of wire 15. In the preferredconstruction of the muffler the pins 14 will be cast integral with a capor cover part 16 which forms one of the outer walls of the chamber ofthe muffler, and which cap or cover part, after the wire coils 15 havebeen placed upon the pins 14, may be riveted or bolted to the bodyportion 12 of the muffler.

Instead of forming the pins 14 on the cover plate of the muffler theymay be formed independently of said plate, as will be understood, andthe body of the said muffler may consist of two opposite flat heads ordisks bolted to a circular rim portion and in one or both of which headsor disks the pins 15 may be riveted.

While it is preferred to provide the transverse pins in the chamber ofthe discoidal muffler body with loose coils of wire, it is not necessarythat all of the pins should be thus provided with the wire coils, assome may be omitted; and in fact the invention will provide an efficientmuffler if the wire coils be omitted altogether and the pins be arrangedso thickly as to properly baffle the passage of the exhaust products ofcom bustion through the chamber of the muffler. The invention willtherefore be understood to comprise a discoidal muffler having inlet andoutlet ports and provided in the chamber thereof, with any suitablebafiling devices. Also instead of a discoidal form of muffler thetransverse pins, either with or Without the loose wire coils, may beapplied to oval orother forms of mufflers having somewhat flat bodiesenlarged laterally between the inlet and outlet ports of the mufllers.

Having thus described my invention I claim and desire to secure byLetters Patent:

1. An exhaust muffler, for internal com" bustion engines, consisting ofa hollow discoidal body having oppositely arranged inlet and outletsports or passages and provided with numerous pins which are disposedtransversely to or across the chamber of the muffler and across the pathof movement of the exhausted gases, some or all of said pins beingencircled by loose coils of wlre.

2. An exhaust muffler, for internal combustion engines, consisting of ahollow discoidal body closed at one side by a cap or cover part 16provided with numerous pins 14 extending across the chamber of themuffler and across the path of movement of the exhausted gases, andloose coils of wire encircling said pins.

3. An exhaust muffler, for internal combustion engines, having aflattened body hausted gases, and some or all of which pins portionprovided with oppositely arranged are encircled by loose coils of wire.10 Q inlet and outlet ports and enlarged laterally In testimony whereofI aflix my signai between said ports, said muflier being protnre inpresence of two witnesses.

,1 vided in the chamber thereof with ninner- AUGUSTUS G. SNYDER. i ouspins which are disposed transversely to Witnesses: f f or across thechamber of the muffler and GEO. D. STRATTON,

' across the path of movement of the ex- JULEs A. DONQUER.

Copies of this patent may be obtained for five cents each, by addressingthe Gommissioner of Patents, Washington, D. G.

